I love a good espionage thriller, and had a couple (more like 20 - Ed.) of ideas for this category. So to try and narrow down my choices l did a trawl of the Internet to see if I could find a definitive list of the best spy novels.

This excellent list comes from Matthew Dunn, a former MI6 officer, and author of the espionage novel Spycatcher. And I have to say it's nearly a perfect match with the novels I had chosen. (I had The Ipcress File rather than Berlin Game, and Casino Royale over From Russia with Love, and I haven't read Night Heron).

And while a definitive list is probably impossible, I think Mr Dunn's choices are all fine examples of the genre.

THE SECRET AGENT – Joseph Conrad

Mr. Verloc is an anarchist, British police snitch, and spy whose Russian masters order him to bomb London. Is he the novel’s protagonist, antagonist, or something in between? Though the book was published in 1907 and set in 1886, it mines a key issue that plagues us today: how the insanity of terrorism cannot only destroy innocents but also destruct the perpetrators.

THE THIRTY-NINE STEPS – John BuchanWorld War I is looming. Richard Hannay flees across the UK while being pursued by German spies who are related to something called The Thirty-Nine Steps. To clear his name and avert war, he must understand what that means. Decades later, CIA agent Jason Bourne might not have been inspired to go on the run and uncover the mystery of Treadstone were it not for Buchan’s exhilarating novel.

DARK STAR – Alan FurstWith World War II inevitable, journalist André Szara is hired by Russia’s spy service. Szara recruits a Berlin-based agent and also begins to fear that his star is rising at the cost of his humanity. Part of American author Furst’s Night Soldiers series, Dark Star can be read as a standalone novel. The best WWII wartime espionage novel ever written.

THE QUIET AMERICAN – Graham GreeneSet in 1950s Southeast Asia, Alden Pyle is the “quiet American” of the title. The revelation that he is a CIA agent is only the beginning of a descent into a sweaty Byzantine landscape of betrayals and ethical ambivalence. In Greene’s eyes, the CIA is not the swaggering, omnipotent beast seen in today’s literature. Instead, in its early years, it was frail, nervous, and out of its depth.

TINKER, TAILOR, SOLDIER, SPY – John le CarréMI6 has a Russian mole, and retired MI6 controller George Smiley is asked to investigate. Having identified four MI6 suspects, Smiley moves through a labyrinth of secrecy, lies, and false impressions. With every step the wise spy takes, increasing sadness consumes him as he draws closer to a rot within the state he once served. A masterclass in espionage writing.

BERLIN GAME – Len Deighton Bernard Sampson is an MI6 officer whose best East German agent wants to defect. But the agent is being sold out by an MI6 traitor. Though a similar premise to le Carré’s masterpiece, the two novels have different strengths. Le Carré’s book has a master spy protagonist who’s no longer an insider. Sampson is an insider but he’s jaded. The story is as much about him overcoming his weaknesses as it is about uncovering the truth.

THE BOURNE IDENTITY – Robert Ludlum Found drifting in the Mediterranean Sea, Jason Bourne is suffering amnesia. To get answers, he heads to Switzerland and is attacked by men who work for a terrorist called Carlos. Bourne must find out the truth by hunting Carlos down himself. Along the way, Bourne remembers that he is a highly trained CIA assassin. Gripping and clever, this is American espionage with a visceral punch.

FROM RUSSIA WITH LOVE – Ian FlemingBond is being targeted for assassination by SMERSH, a Soviet death squad. To entrap Bond, SMERSH deploys a beautiful Soviet clerk and a psychopathic executioner. For some spy writers, the Cold War was a slow-burning chess game. But for master storyteller Fleming, it was a bombastic cacophony of thrills.

THE DAY OF THE JACKAL – Frederick ForsythAn English assassin called “The Jackal” is engaged by rebels to kill France’s President de Gaulle. In the 1960s, no premier had greater protection than de Gaulle, but The Jackal devises an audacious plan that culminates in his ability to put the premier in sniper-rifle sights. Forsyth was the first author to show how European spy agencies could cooperate when confronted with the knowledge that a deadly gunman was loose on their patch.

NIGHT HERON – Adam BrookeA Chinese intellectual called Peanut was a former spy for the British. After twenty years in a harsh prison camp in western China, Peanut escapes and heads to Beijing in search of revenge against those who incarcerated him. What follows is a fraught game of cat and mouse with the Chinese and British spy agencies. Brooke’s outstanding debut is a brilliant example of contemporary espionage writing.